Getting content from service bus in logic apps

Question

I am new to Azure logic apps. I have a service bus and pass a json object message to that service bus then I set up an action in logic apps to listen to my service bus. So everytime a new message come in to that service bus my logic apps will pick it up and send it to http.

My question is how can I grab the property from the message in service bus and pass it to my http action. I tried this

“Id” : “@{json(triggerBody()[‘ContentData’]).id}”

but it's not working

Answer 1

Who and how is sending the message on the queue?

I read a json message property (DestinationPath) in this way:

@{json(base64ToString(triggerBody()?['ContentData'])).DestinationPath}

Here is how my Logic App looks like

and in my case the message is sent from an Azure webjob as a BrokeredMessage:

string jsonMessage = JsonConvert.SerializeObject(myObject);
Stream streamMessage = new MemoryStream(Encoding.UTF8.GetBytes(jsonMessage));
BrokeredMessage msg = new BrokeredMessage(streamMessage);

client.Send(msg);

Answer 2

My precise setup to decrypt the base 64 message using the interface. Easy enough to type into the expression builder.

json(base64ToString(triggerBody()?['ContentData']))